chore: 导入清理前的完整工程状态（含 Capacitor 原生壳，作为回滚备份点）

apps/web/app/composables/store/userDataMeta.ts

@@ -0,0 +1,23 @@
+import type { FavoriteRemoval, HistoryRemoval } from '~/utils/userData'
+import { useStorage } from '@vueuse/core'
+import { namespace } from '~/constants'
+
+/**
+ * Sync bookkeeping kept next to `cook:favorites` and `cook:history`, which stay
+ * in their original format. Deletions are recorded even when logged out so they
+ * can be applied to the cloud after the next login.
+ */
+export interface UserDataMeta {
+  favoriteRemovals: FavoriteRemoval[]
+  historyRemovals: HistoryRemoval[]
+  historyClearedAt: number
+  /** The account this device last synced with. */
+  lastUid: string
+}
+
+export const userDataMeta = useStorage<UserDataMeta>(`${namespace}:sync`, {
+  favoriteRemovals: [],
+  historyRemovals: [],
+  historyClearedAt: 0,
+  lastUid: '',
+}, undefined, { mergeDefaults: true })